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Lancaster Flood Watch, Flash Flood Monday; Philly Heat Advisory

7/6/2026

35 3 Full Breakdown

Summary

Story summary

A flood watch for Lancaster County runs from 2 p.m. Sunday to 8 p.m. Monday as 1–2 inches of rain are forecast Sunday night.
Flash-flood risk peaks Monday evening as storms could drop 2–4 inches of rain in an hour, with wind gusts near 60 mph and hail possible after 6 p.m.
Despite a cooling break with highs in the 90s, a heat advisory stays in effect for Philadelphia from 8 a.m. to 8 p.m. Sunday.

History

Historical Context

June 1972 Hurricane Agnes flooded Pennsylvania, destroying thousands of homes, killing 50 people and causing about $2.1 billion in damage. Governor Milton Shapp ordered evacuations, and the disaster prompted construction of the Tioga Reservoir and a Wilkes-Barre levee that later shielded the area from floods. Today’s flash-flood watch for Lancaster County and heat advisory for Philadelphia echo those same rapid rain bursts.

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Story summary

A flood watch for Lancaster County runs from 2 p.m. Sunday to 8 p.m. Monday as 1–2 inches of rain are forecast Sunday night.
Flash-flood risk peaks Monday evening as storms could drop 2–4 inches of rain in an hour, with wind gusts near 60 mph and hail possible after 6 p.m.
Despite a cooling break with highs in the 90s, a heat advisory stays in effect for Philadelphia from 8 a.m. to 8 p.m. Sunday.

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